User:Jcreer/SWB: Difference between revisions

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==External Links==
==External Links==
* [https://www.usgs.gov/centers/wisconsin-water-science-center/science/swb-modified-thornthwaite-mather-soil-water-balance?qt-science_center_objects=0#qt-science_center_objects SWB website with USGS]
* [https://www.usgs.gov/centers/wisconsin-water-science-center/science/swb-modified-thornthwaite-mather-soil-water-balance?qt-science_center_objects=0#qt-science_center_objects SWB website with USGS]
* [http://gmsdocs.aquaveo.com/swb_manual.pdf SWB User Manual]


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Revision as of 17:44, 10 May 2018

The Soil-Water-Balance (SWB) model has been developed by USGS to allow estimates of potential recharge to be made quickly and easily.

Required Input

Four gridded datasets are required:

  • Hydrologic soil group
  • land-use/land cover
  • Available soil-water capacity
  • Surface-water flow direction

In addition to gridded land-surface data the model requires tabular daily climatological data (daily precip (inches), average air temperature [F], max air temp [F], min air temp [F]). Additional data may be required depending on model options: (1) daily average wind speed (m/s), (2) daily average relative humidity (%), (3) daily max relative humidity (%), (4) daily percentage of possible sunshine (%). Finally a lookup table must be supplied to assign curve numbers, interception values, rooting depths, and maximum daily recharge values.


External Links